http://torre.duomo.pisa.it/
http://www.endex.com/gf/buildings/ltpisa/ltpinfo/belltower.htm

Pisa:
http://es.wikipedia.org/wiki/Torre_de_Pisa

Literal:
At least 650 years have passed since the beginning of the bell-tower cell, which also has the function of balancing the load. The tower was built to the design height of the project (100 arms), and seven bells were installed:

l’Assunta
il Crocifisso
San Ranieri
la Pasquereccia
Del Pozzetto
la Terza
il Vespruccio

The sound of its bells (.ogg)

Video: short history: The Tower of Pisa

Image